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首页> 外文期刊>EURASIP journal on advances in signal processing >A contourlet-based image watermarking scheme with high resistance to removal and geometrical attacks
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A contourlet-based image watermarking scheme with high resistance to removal and geometrical attacks

机译:基于轮廓波的图像水印方案,具有很高的抗去除和几何攻击能力

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摘要

We propose a new nonblind multiresolution watermarking method for still images based on the contourlet transform (CT). In our approach, the watermark is a grayscale image which is embedded into the highest frequency subband of the host image in its contourlet domain. We demonstrate that in comparison to other methods, this method enables us to embed more amounts of data into the directional subbands of the host image without degrading its perceptibility. The experimental results show robustness against several common watermarking attacks such as compression, adding noise, filtering, and geometrical transformations. Since the proposed approach can embed considerable payload, while providing good perceptual transparency and resistance to many attacks, it is a suitable algorithm for fingerprinting applications.
机译:我们提出了一种基于轮廓波变换(CT)的静止图像非盲多分辨率水印新方法。在我们的方法中,水印是灰度图像,它嵌入到宿主图像轮廓波域中的最高频率子带中。我们证明,与其他方法相比,该方法使我们能够将更多数量的数据嵌入到宿主图像的方向子带中,而不会降低其可感知性。实验结果表明,它对几种常见的水印攻击(如压缩,添加噪声,滤波和几何变换)具有鲁棒性。由于所提出的方法可以嵌入可观的有效负载,同时提供良好的感知透明性和抵抗多种攻击的能力,因此它是适用于指纹识别应用程序的合适算法。

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